Fallos del tipo CWE-125
6000 resultadosLeitura fora dos limites do buffer
Ocorre quando o código tenta acessar dados além das fronteiras válidas de um buffer (array, string, estrutura), lendo memória que não deveria. O risco é expor informações sensíveis da memória adjacente ou causar crash da aplicação.
Ejemplo
Uma função que processa strings sem validar o tamanho da entrada pode ler bytes além do final da string alocada, vazando dados de memória ou causando segmentation fault. Exemplo: strcpy() copiando para buffer menor sem checagem.
Cómo mitigar
Use funções seguras com limite explícito (strlen com buffer_size, strncpy, snprintf), valide índices antes de acessar arrays, e ative verificações de limite em tempo de compilação ou execução (-ftrapv, ASAN, bounds checking).
CVE-2022-35926MEDIUMOut-of-bounds read in IPv6 neighbor solicitation in Contiki-NGEPSS 1.3%CVE-2023-26489CRITICALGuest-controlled out-of-bounds read/write on x86_64 in wasmtimeEPSS 1.3%CVE-2026-33096HIGHHTTP.sys Denial of Service VulnerabilityEPSS 1.2%CVE-2020-16236—anasonic FPWIN ProEPSS 1.2%CVE-2021-22655—Multiple out-of-bounds read issues have been identified in the way the application processes project files, allowing an attacker to craft a EPSS 1.2%CVE-2024-51569HIGHApache NimBLE: Lack of input sanitization leading to out-of-bound reads in Number of Completed Packets HCI event handlerEPSS 1.2%CVE-2023-40576MEDIUMOut-Of-Bounds Read in FreeRDPEPSS 1.2%CVE-2022-41988MEDIUMAn information disclosure vulnerability exists in the OpenImageIO::decode_iptc_iim() functionality of OpenImageIO Project OpenImageIO v2.3.1EPSS 1.2%CVE-1999-0029HIGHroot privileges via buffer overflow in ordist command on SGI IRIX systems.EPSS 1.2%CVE-2026-88123MEDIUMRole: DNS Server Denial of Service VulnerabilityEPSS 1.2%CVE-2026-88125MEDIUMRole: DNS Server Denial of Service VulnerabilityEPSS 1.2%CVE-2026-88130MEDIUMRole: DNS Server Denial of Service VulnerabilityEPSS 1.2%CVE-2026-83649MEDIUMWindows Local Security Authority Subsystem Service (LSASS) Denial of Service VulnerabilityEPSS 1.2%CVE-2026-88129MEDIUMRole: DNS Server Denial of Service VulnerabilityEPSS 1.2%CVE-2023-38427CRITICALAn issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/smb2pdu.c in ksmbd has an integer underflow and out-of-bounds read iEPSS 1.2%CVE-2023-24900MEDIUMWindows NTLM Security Support Provider Information Disclosure VulnerabilityEPSS 1.2%CVE-2025-5456HIGHA buffer over-read vulnerability in Ivanti Connect Secure before 22.7R2.8 or 22.8R2, Ivanti Policy Secure before 22.7R1.5, Ivanti ZTA GatewaEPSS 1.2%CVE-2026-83667MEDIUMWindows Active Directory Domain Services Denial of Service VulnerabilityEPSS 1.2%CVE-2021-21410HIGHOut-of-bounds read in the 6LoWPAN implementationEPSS 1.2%CVE-2023-36766HIGHMicrosoft Excel Information Disclosure VulnerabilityEPSS 1.2%